I always had a problem of juggling multiple sim cards when traveling aboard, so I bought this sim card wallet as a means for me organise all my pre-paid sim cards I uses frequently on my trips as well as a convenient place to store my backup SD cards I use for my travel camera too.
The wallet itself was delivered via registered mail from an address in Hong Kong under a week and surprisingly before the arrival time as estimated by Amazon. It arrived in a nicely textured brown cardboard box and wrapped with white wrapping paper inside with the brand "PD Air" printed all around it.
The wallet itself comes with slots for 2 sizes of cards- fitting 4 full-sized SD cards and 4 normal full sized Sim cards. The sim card slots itself can be used to fit miniSDs, micro Sims or microSD cards when inserted laterally, though I won't recommend doing so as the leather pocket does stretch and expand a little after fitting in a larger card beforehand, so it might potentially come loose. In this case, I would recommend using the smaller cards in a full sized SD card adapter in the SD pockets or have a sleeve wrapped around it before slotting it into the smaller Sim pockets.
The wallet also comes with 2 internal pockets allowing you to store some cash or full sized phone/credit cards if need be. There is no slot for notes by the side. Externally, wallet itself is rather nicely made, made with soft black leather with silver stitches along the outer seams and internal rims of the card slots.
Overall, it's a very nicely made wallet which I would recommend to anyone looking for a neat and stylish way to organise your cards, though £20 is tad bit expensive for a specialized wallet, considering that most reasonable price wallets here in the UK usually retail around the £5-10 price point.